A quiz, designed for business writers, that tests knowledge of words which are frequently misspelled. It includes questions about two words which are spelled differently in British spelling than in American spelling.

This site provides a grammar reference for students. The rules for using dashes, commas, semicolons, coordinating conjunctions, and conjunctive adverb are included. Topics including subject-verb agreement, how to proofread, and twelve...

This site offers two proofreading exercises in which students proofread for errors in spelling, capitalization, punctuation, and usage, and then retype passages correctly. When finished they click Answers for feedback.